I tried to find Viper0us comment on the other thread but could. It was on last week’s movie listings post. What you do is below:

1. Open your moviepass app at midnight and select your theater. The next days movies will load and usually it is all movies, not just the supported movies on the list.
2. Make sure your background app refresh is off. As long as the moviepass app doesn’t refresh, you should still be able to check in when you go to the theater later in the day.

The whole point is your moviepass app can’t refresh. If it does, it will load with the movie restrictions and you won’t be able to check in. And it’s not every night that movies are loaded at midnight. But I checked again tonight and they all pulled up.